/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.carbondata.scan.executor;

import org.apache.carbondata.common.CarbonIterator;
import org.apache.carbondata.scan.executor.exception.QueryExecutionException;
import org.apache.carbondata.scan.model.QueryModel;

/**
 * Interface for carbon query executor.
 * Will be used to execute the query based on the query model
 * and will return the iterator over query result
 */
public interface QueryExecutor<E> {

  /**
   * Below method will be used to execute the query based on query model passed from driver
   *
   * @param queryModel query details
   * @return query result iterator
   * @throws QueryExecutionException if any failure while executing the query
   */
  CarbonIterator<E> execute(QueryModel queryModel) throws QueryExecutionException;
}
